The Victory Vap-SS Sport line of arrow shafts is a micro diameter shaft with stainless steel layers infused into a 90 degree carbon fiber weave arrow that is lighter and faster with a higher FOC designed with accuracy and increased penetration. Features advanced 3K carbon weave for less torque, faster recovery, and tighter spine consistency. Has advanced Nano ceramic arrow coating that improves penetration and easy arrow removal. Straightness tolerance of +- .006â?쳌 and weight tolerance of +- 0.5 grains. Available in sizes 300 (9.9 GPI), 350 (9.0 GPI), 400 (8.5 GPI). IP nocks and Shok TL aluminum inserts included. Factory fletched with 2â?쳌 vanes.